Assuming that 100 shares were bought in each company, which pair would give you the greatest return on an investment made in Year 1 and cashed in Year 5?

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

On a piece of paper, graph . then determine which answer choice matches the graph you drew

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv